public class Circle {
	
	public static void main (String args[]) {

		ReadStream r = new ReadStream();
		
		describeProgram();
		
		//read radius
		double radius; 
		System.out.print("Enter radius: ");
		radius = r.readDouble(); 
		r.readLine(); 
	
		//ask for preference
		char pref; 
		System.out.print("Enter c for circumference, a for area: "); 
		pref = r.readChar(); 
		r.readLine(); 
		
		if (pref =='c') 
			printCirc(radius); 
		else printArea(radius);		

	} // end of main
	
	
	
	//coments...
	public static void describeProgram () {
		System.out.println("Welcome!! This is a program....");
	}
	
	
	//comments
	public static void printCirc (double rad) {
			double c; 
			c = 2 * 3.14 * rad; 
			System.out.println("Circumference is " + c);
	}
	
	//comments
	public static void printArea (double rad) {
			double a; 
			a = 3.14 * rad * rad; 
			System.out.println("Area is " + a);
	}
	
		
				
} // end of class